Zobrazeno 1 - 10
of 1 497
pro vyhledávání: '"Steyn G."'
Autor:
Vyfers, E. C., Pesudo, V., Triambak, S., Kamil, M., Adsley, P., Brown, B. A., Jivan, H., Marin-Lambarri, D. J., Neveling, R., Ondze, J. C. Nzobadila, Papka, P., Pellegri, L., Rebeiro, B. M., Singh, B., Smit, F. D., Steyn, G. F.
Background: The nucleosynthesis of several proton-rich nuclei is determined by radiative proton-capture reactions on unstable nuclei in nova explosions. One such reaction is $^{23}{\rm Mg}(p,\gamma)^{24}{\rm Al}$, which links the NeNa and MgAl cycles
Externí odkaz:
http://arxiv.org/abs/2311.15935
Autor:
Olorunfunmi, S. D., Neveling, R., Carter, J., von Neumann-Cosel, P., Usman, I. T., Adsley, P., Bahini, A., Baloyi, L. P. L., Brümmer, J. W., Donaldson, L. M., Jivan, H., Kheswa, N. Y., Li, K. C. W., Marín-Lámbarri, D. J., Molema, P. T., Moodley, C. S., O'Neill, G. G., Papka, P., Pellegri, L., Pesudo, V., Sideras-Haddad, E., Smit, F. D., Steyn, G. F., Aava, A. A., Diel, F., Dunkel, F., Jones, P., Karayonchev, V.
Two recent studies of the evolution of the isoscalar giant monopole resonance (ISGMR) within the calcium isotope chain report conflicting results. One study suggests that the monopole resonance energy, and thus the incompressibility of the nucleus $K
Externí odkaz:
http://arxiv.org/abs/2202.00722
Autor:
Li, K. C. W., Smit, F. D., Adsley, P., Neveling, R., Papka, P., Nikolskii, E., Brümmer, J. W., Donaldson, L. M., Freer, M., Harakeh, M. N., Nemulodi, F., Pellegri, L., Pesudo, V., Wiedeking, M., Buthelezi, E. Z., Chudoba, V., Förtsch, S. V., Jones, P., Kamil, M., Mira, J. P., O'Neill, G. G., Sideras-Haddad, E., Singh, B., Siem, S., Steyn, G. F., Swartz, J. A., Usman, I. T., van Zyl, J. J.
Knowledge of the low-lying monopole strength in $\mathrm{^{12}C}$ $-$ the Hoyle state in particular $-$ is crucial for our understanding of both the astrophysically important $3\alpha$ reaction and of $\alpha$-particle clustering. Multiple theoretica
Externí odkaz:
http://arxiv.org/abs/2201.10396
Autor:
Brümmer, J. W., Adsley, P., Rauscher, T., Smit, F. D., Brits, C. P., Köhne, M., Khumalo, N. A., Li, K. C. W., Marín-Lámbarri, D. J., Mukwevho, N. J., Nemulodi, F., Neveling, R., Papka, P., Pellegri, L., Pesudo, V., Rebeiro, B. M., Steyn, G. F., Yahia-Cherif, W.
This paper examines the $^{18}$Ne($\alpha, p_{0}$)$^{21}$Na cross-section relevant in X-ray bursts. The study was performed with the K600 magnetic spectrometer in coincidence with the CAKE, a silicon detector array, at iThemba LABS in Cape Town, Sout
Externí odkaz:
http://arxiv.org/abs/2109.06537
Autor:
Li, K. C. W., Smit, F. D., Adsley, P., Neveling, R., Papka, P., Nikolskii, E., Brümmer, J. W., Donaldson, L. M., Freer, M., Harakeh, M. N., Nemulodi, F., Pellegri, L., Pesudo, V., Wiedeking, M., Buthelezi, E. Z., Chudoba, V., Förtsch, S. V., Jones, P., Kamil, M., Mira, J. P., O'Neill, G. G., Sideras-Haddad, E., Singh, B., Steyn, G. F., Swartz, J. A., Usman, I. T., van Zyl, J. J.
Knowledge of the low-lying monopole strength in $\mathrm{^{12}C}$, the Hoyle state in particular, is crucial for our understanding of both the astrophysically important $3\alpha$ reaction and of $\alpha$-particle clustering. The $\mathrm{^{12}C}(\alp
Externí odkaz:
http://arxiv.org/abs/2011.10112
Autor:
Donaldson, L. M., Carter, J., von Neumann-Cosel, P., Nesterenko, V. O., Neveling, R., Reinhard, P. -G., Usman, I. T., Adsley, P., Bertulani, C. A., Brümmer, J. W., Buthelezi, E. Z., Cooper, G. R. J., Fearick, R. W., Förtsch, S. V., Fujita, H., Fujita, Y., Jingo, M., Kheswa, N. Y., Kleinig, W., Kureba, C. O., Kvasil, J., Latif, M., Li, K. C. W., Mira, J. P., Nemulodi, F., Papka, P., Pellegri, L., Pietralla, N., Ponomarev, V. Yu., Rebeiro, B., Richter, A., Shirikova, N. Yu., Sideras-Haddad, E., Sushkov, A. V., Smit, F. D., Steyn, G. F., Swartz, J. A., Tamii, A.
Publikováno v:
Phys. Rev. C 102, 064327 (2020)
Background: Inelastic proton scattering at energies of a few hundred MeV and very-forward angles including $0^\circ$ has been established as a tool to study electric-dipole strength distributions in nuclei. The present work reports a systematic inves
Externí odkaz:
http://arxiv.org/abs/2010.01210
Autor:
Olorunfunmi, S. D., Usman, I. T., Carter, J., Molema, P. T., Sideras-Haddad, E., Neveling, R., Smit, F. D., Adsley, P., Donaldson, L. M., Pellegri, L., Steyn, G. F., von Neumann-Cosel, P., Pietralla, N., Arsenyev, N. N., Papka, P., Li, K. C. W., Brümmer, J. W., ONeill, G. G., Pesudo, V., Marín-Lámbarri, D. J., Fujita, H., Tamii, A.
Experiments investigating the fine structure of the IsoScalar Giant Monopole Resonance (ISGMR) of 48Ca were carried out with a 200 MeV alpha inelastic-scattering reaction, using the high energy-resolution capability and the zero-degree setup at the K
Externí odkaz:
http://arxiv.org/abs/2007.08984
Autor:
Mukwevho, N. J., Rebeiro, B. M., Marín-Lámbarri, D. J., Triambak, S., Adsley, P., Kheswa, N. Y., Neveling, R., Pellegri, L., Pesudo, V., Smit, F. D., Akakpo, E. H., Brümmer, J. W., Jongile, S., Kamil, M., Mabika, P. Z., Nemulodi, F., Orce, J. N., Papka, P., Steyn, G. F., Yahia-Cherif, W.
Publikováno v:
Phys. Rev. C 98, 051302 (2018)
Recent high-precision mass measurements and shell model calculations~[Phys. Rev. Lett. {\bf 108}, 212501 (2012)] have challenged a longstanding explanation for the requirement of a cubic isobaric multiplet mass equation for the lowest $A = 9$ isospin
Externí odkaz:
http://arxiv.org/abs/1810.02392
Autor:
Kureba, C. O., Buthelezi, Z., Carter, J., Cooper, G. R. J., Fearick, R. W., Förtsch, S. V., Jingo, M., Kleinig, W., Krugmann, A., Krumbolz, A. M., Kvasil, J., Mabiala, J., Mira, J. P., Nesterenko, V. O., von Neumann-Cosel, P., Neveling, R., Papka, P., Reinhard, P. -G., Richter, A., Sideras-Haddad, E., Smit, F. D., Steyn, G. F., Swartz, J. A., Tamii, A., Usman, I. T.
Publikováno v:
Phys. Lett. B 779, 269 (2018)
The phenomenon of fine structure of the Isoscalar Giant Quadrupole Resonance (ISGQR) has been studied with high energy-resolution proton inelastic scattering at iThemba LABS in the chain of stable even-mass Nd isotopes covering the transition from sp
Externí odkaz:
http://arxiv.org/abs/1705.10108
Autor:
Donaldson, L. M., Bertulani, C. A., Carter, J., Nesterenko, V. O., von Neumann-Cosel, P., Neveling, R., Reinhard, P. -G., Usman, I. T., Adsley, P., Brummer, J. W., Buthelezi, E. Z., Cooper, G. R. J., Fearick, R. W., Förtsch, S. V., Fujita, H., Fujita, Y., Jingo, M., Kleinig, W., Kureba, C. O., Kvasil, J., Latif, M., Li, K. C. W., Mira, J. P., Nemulodi, F., Papka, P., Pellegri, L., Pietralla, N., Ponomarev, V. Yu., Richter, A., Sideras-Haddad, E., Smit, F. D., Steyn, G. F., Swartz, J. A., Tamii, A.
Proton inelastic scattering experiments at energy E_p = 200 MeV and a spectrometer scattering angle of 0 degree were performed on 144,146,148,150Nd and 152Sm exciting the IsoVector Giant Dipole Resonance (IVGDR). Comparison with results from photo-ab
Externí odkaz:
http://arxiv.org/abs/1612.06819